888
FNCA52 TJSJ 120730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST MON OCT 12 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-122000-
SOUTHEAST COASTAL PLAINS-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30
TEMP (24H TREND) 91 (+3) 73 (-2) 88
RH % (24H TREND) 56 (-3) 94 (+4) 64
WIND 20FT/EARLY(MPH) E 14 NE 9 E 13
WIND 20FT/LATE(MPH) SE 14 NE 8 E 14
MIXING HGT(FT-AGL/MSL)4930 3630
TRANSPORT WND (MPH) E 15 E 10
VENT RATE (KT-FT) 64090 32670
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-122000-
SOUTHERN HILLS-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 10 60
TEMP (24H TREND) 89 (+5) 70 (-3) 86
RH % (24H TREND) 61 (-8) 99 (+6) 68
WIND 20FT/EARLY(MPH) E 11 E 9 NE 9
WIND 20FT/LATE(MPH) SE 11 NE 6 E 10
MIXING HGT(FT-AGL/MSL)5590 3850
TRANSPORT WND (MPH) E 14 E 9
VENT RATE (KT-FT) 67080 30800
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-122000-
NORTH COASTAL PLAINS-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 20 70
TEMP (24H TREND) 91 (+2) 73 (-3) 88
RH % (24H TREND) 60 (-6) 98 (+6) 67
WIND 20FT/EARLY(MPH) E 11 SE 12 E 11
WIND 20FT/LATE(MPH) E 16 SE 6 E 12
MIXING HGT(FT-AGL/MSL)5210 3700
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 62520 40700
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-122000-
NORTHERN HILLS-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 20 80
TEMP (24H TREND) 91 (+4) 71 (-2) 88
RH % (24H TREND) 61 (-4) 99 (+4) 69
WIND 20FT/EARLY(MPH) E 10 SE 10 E 10
WIND 20FT/LATE(MPH) E 13 SE 5 NE 10
MIXING HGT(FT-AGL/MSL)5880 3980
TRANSPORT WND (MPH) E 10 E 10
VENT RATE (KT-FT) 52920 35820
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-122000-
WEST COAST-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 50 50
TEMP (24H TREND) 92 (+3) 73 (0) 89
RH % (24H TREND) 60 (-7) 98 (+6) 67
WIND 20FT/EARLY(MPH) E 11 E 8 E 9
WIND 20FT/LATE(MPH) E 12 E 5 E 9
MIXING HGT(FT-AGL/MSL)4510 3090
TRANSPORT WND (MPH) SE 9 E 5
VENT RATE (KT-FT) 36080 12360
DISPERSION 5 5
DSI 6 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-122000-
EASTERN INTERIOR-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 30 70
TEMP (24H TREND) 90 (+4) 71 (-3) 87
RH % (24H TREND) 59 (-8) 99 (+5) 67
WIND 20FT/EARLY(MPH) E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 11 E 9 E 9
MIXING HGT(FT-AGL/MSL)6230 3910
TRANSPORT WND (MPH) E 13 E 10
VENT RATE (KT-FT) 68530 35190
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-122000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 60
TEMP (24H TREND) 86 (+5) 70 (-3) 83
RH % (24H TREND) 64 (-9) 100 (+4) 72
WIND 20FT/EARLY(MPH) E 10 E 8 E 8
WIND 20FT/LATE(MPH) E 10 E 5 E 8
MIXING HGT(FT-AGL/MSL)4500 3090
TRANSPORT WND (MPH) E 14 E 10
VENT RATE (KT-FT) 54000 27810
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-122000-
CENTRAL MOUNTAIN RANGE-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 20 80
TEMP (24H TREND) 87 (+6) 68 (-2) 84
RH % (24H TREND) 64 (-7) 99 (+5) 72
WIND 20FT/EARLY(MPH) E 8 E 5 E 6
WIND 20FT/LATE(MPH) E 9 LGT/VAR E 6
MIXING HGT(FT-AGL/MSL)6880 4470
TRANSPORT WND (MPH) SE 8 E 7
VENT RATE (KT-FT) 48160 26820
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-122000-
CAYEY MOUNTAIN RANGE-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 30 50
TEMP (24H TREND) 86 (+4) 69 (-3) 83
RH % (24H TREND) 63 (-9) 100 (+3) 70
WIND 20FT/EARLY(MPH) E 10 E 6 NE 8
WIND 20FT/LATE(MPH) E 10 NE 5 E 8
MIXING HGT(FT-AGL/MSL)5010 3600
TRANSPORT WND (MPH) E 14 E 12
VENT RATE (KT-FT) 60120 36000
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-122000-
VIEQUES-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 60
TEMP (24H TREND) 90 (+2) 77 (-2) 88
RH % (24H TREND) 57 (-6) 92 (+8) 63
WIND 20FT/EARLY(MPH) E 12 E 11 E 11
WIND 20FT/LATE(MPH) E 11 NE 11 E 10
MIXING HGT(FT-AGL/MSL)3440 2820
TRANSPORT WND (MPH) E 15 E 12
VENT RATE (KT-FT) 44720 28200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-122000-
CULEBRA-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 50
TEMP (24H TREND) 91 (+3) 78 (-3) 89
RH % (24H TREND) 58 (-8) 88 (+5) 62
WIND 20FT/EARLY(MPH) E 12 E 11 E 11
WIND 20FT/LATE(MPH) E 11 E 11 E 10
MIXING HGT(FT-AGL/MSL)3480 2950
TRANSPORT WND (MPH) E 14 E 12
VENT RATE (KT-FT) 41760 29500
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-122000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 30
TEMP (24H TREND) 93 (+4) 74 (-2) 90
RH % (24H TREND) 55 (-4) 94 (+7) 62
WIND 20FT/EARLY(MPH) E 14 E 11 E 11
WIND 20FT/LATE(MPH) SE 17 NE 6 SE 13
MIXING HGT(FT-AGL/MSL)4810 3340
TRANSPORT WND (MPH) E 14 E 9
VENT RATE (KT-FT) 57720 26720
DISPERSION 5 4
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-122000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 40
TEMP (24H TREND) 88 (+2) 76 (-4) 86
RH % (24H TREND) 63 (-5) 93 (+8) 68
WIND 20FT/EARLY(MPH) E 13 E 12 E 12
WIND 20FT/LATE(MPH) E 12 E 11 E 11
MIXING HGT(FT-AGL/MSL)3360 2920
TRANSPORT WND (MPH) E 16 E 16
VENT RATE (KT-FT) 47040 40880
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-122000-
ST CROIX-
330 AM AST MON OCT 12 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 40
TEMP (24H TREND) 89 (+2) 77 (-3) 87
RH % (24H TREND) 63 (-5) 95 (+7) 68
WIND 20FT/EARLY(MPH) E 13 E 11 E 13
WIND 20FT/LATE(MPH) E 11 E 10 E 11
MIXING HGT(FT-AGL/MSL)4230 3520
TRANSPORT WND (MPH) E 15 E 14
VENT RATE (KT-FT) 54990 42240
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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